The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents the detailed analysis of the AC Buck converter's power losses in order to emphasize the main problems towards high power conversion efficiency. The conduction losses and the switching losses of the switching block are considered. The most influential parameters of the system are identified and favorable operation conditions are determined. The efficiency of the experimental prototype...
This paper presents the benefits of the AC Buck voltage converter in comparison with the traditional SCR-based voltage converter in the induction drive's energy-saving application. The particular squirrel-cage induction motor is considered. The Power Factor, the Displacement Power Factor and the currents' Total Harmonic Distortion are analyzed and compared.
This paper presents the results of an accuracy estimation of the previously proposed simplified mathematical model for harmonic distortion analysis in AC Buck converter. The experiment is performed using the designed prototype of the power converter with an induction motor. The results of the experiment are processed in Matlab in compliance with the digital signals processing theory. An accuracy of...
This paper presents the software application for power losses and temperature modeling of AC Buck converters. The application provides modeling different three-phase power circuits of AC Buck converters with several load types. The theoretical models are described in details. The experimental verification of modeling results is performed.
This paper presents a new middle-stage current-fed high-frequency link inverter (MSCF-HFLI). The proposed inverter only contains one passive buffering energy element comparing with conventional resonant type HFLI, which at least has two passive buffering energy elements. The topology of the proposed inverter is given and the operational principle in a line-frequency cycle is analyzed, which is similar...
In this paper, a novel ac automatic voltage regulator (AVR) is proposed. This AVR is configured by an input inductor, an output filter, a small-capacitance dc capacitor, and a three-arm power converter. This three-arm power converter acts as an ac boost converter when the utility voltage is lower than the specified voltage. On the contrary, this three-arm power converter acts as an ac buck converter...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.